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        HOME >PRODUCT DISPLAY >PRODUCT DETAIL
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        BBO crystal
            BBO (Beta-Barium Borate or β-BaB2O4)is an outstanding nonlinear optical crystal which has the obvious and unique advantages on frequency conversions of high peak power laser radiation from UV to VIS. BBO is grown with the flux method. It is a negative uniaxial crystal, with ordinary refractive-index (no) larger than extraordinary refractive-index (ne).? Both type I and type II phase-matching can be reached by angle-tuning.
        • DETAIL
        • STANDARD PRODUCT
        • BASIC PROPERTIES
        • Applications:

               ● SHG, THG, 4HG, 5HG of Nd lasers

               ● SHG, THG, 4HG of Ti:Al2O3 and Alexandrite lasers

               ● SHG, THG and Frequency-mixing of Dye lasers

               ● SHG of Argon ion, Cu-vapor and Ruby lasers

               ● OPA and OPO

               ● Electro-Optical application (Pockels Cell)

           

           CRYSTIK‘s BBO is featured by:

               ● Broad phase-matching wavelength range from 409.6nm to 3500nm.

               ● Wide transmission region from 190 nm to 3500nm.

               ● Large effective SHG coefficient about 6 times greater than that of KDP crystal.

               ● High damage threshold of 10 GW/cm2 for 100 ps pulse-width at 1064nm.

               ● High optical homogeneity with ?n ~ 10-6/cm.

               ● Good Mechanical and physical properties.

               ● Wide temperature-bandwidth of about 55°C.(For type I SHG 1064nm).

           

          CRYSTIK offers:

               ● Strict quality control;

               ● Free Technical Support.

               ● Crystal length from 0.005 mm to 25 mm and size up to 15x15x15 mm3; 

               ● P-coatings, AR-coatings,  mounts and re-polishing services; 

               ● A large quantity of crystals in stock;
               ● Fast delivery (2 weeks for polished only, 3 weeks for coated).

        • Standard product


          Dimension Tolerance

          W(+/-0.1)*H(+/-0.1)*L(+0.5/-0.1)mm

          Angle Tolerance

          +/-0.25°

          Perpendicularity

          ≤ 10’

          Scratch/Dig

          10/5

          Chamfer

          ≤ 0.2mm x 45°

          Parallelism

          ≤10″

          Chips

          ≤ 0.1mm

          Flatness

          [email protected]

          Clear Aperture

          ≥ 90%

          Wavefront distortion

          [email protected]

          Coatings

          C1---   [email protected](R<0.2%)&266(R<0.5%)

          C2---   [email protected](R<0.2%)&532(R<0.5%)&355(R<0.5%)

          C3---   Pcoating/Pcoating

          Damage Threshold

          1GW/cm2 (1064nm, 10ns, 10Hz)

          Property

          圖片1.png

        • Physical properties:


          Crystal Structure:

          Trigonal, space group R3c

          Lattics Parameters:

          a=b=12.532?, c=12.717?, Z=6

          Melting point

          About 1095℃

          Mohs Hardness

          4

          Density

          3.85g/cm3

          Thermal Conductivity

          1.2W/m/K(┴c): 1.6W/m/K(//c)

          Thermal Expansion Coefficients

          33=36x10-6/Ka11=4x10-6/K; 

          Optical Properties:


          Transparency Range:

          190-3500nm

          SHG Phase Matchable Range

          409.6-3500nm(Type I)  525-3500nm(Type II)

          therm-optic Coefficients(/℃)

          dno/dT=-16.6x10-6

          dne/dT=-9.3x10-6

          Absorption Coefficients

          <0.1%/cm at 1064nm         <1%/cm at 532nm

          Angle Acceptance

          0.8mrad-cm      (θ, Type I,1064 SHG)   
          1.27mrad-cm    (θ, Type II,1064 SHG)

          Temperature Acceptance

          55℃-cm

          Spectral Acceptance

          1.1nm-cm

          Walk-off Angle

          2.7°   (Type I 1064 SHG)
          3.2°  (Type II 1064 SHG)

          NLO Coefficients

          deff (I)=d31sinθ+(d11cosΦ-d22sin3Φ)cosθ
          deff (II)=(d11sin3Φ+d22cos3Φ)cos2θ

          Non-vanished NLO susceptibilities

          d11=5.8xd36(KDP)
          d31=0.05xd11
          d22<0.05xd11

          sellmeier Equations(λ in μm )

          no2=2.7359+0.01878 / (λ2-0.01822) -0.01354 λ2
          ne2=2.3753+0.01224 / (λ2-0.01667) -0.01516 λ2

          Electro-optic coefficients:

          r22=2.7pm/V

          Half-wave voltage:

          7KV (at 1064nm,3*3*20mm3)

          Resistivity:

          >1011 ohm-cm

          Relative Dielectric Constant:

          εs11/εo:6.7
          εs33/εo:8.1
          Tan δ<0.001

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